On June 16 the Food and Drug Administration made the final call: Trans fats are no longer “generally recognized as safe” for use in food. That means that food manufacturers have three years to ooze these cheap and useful fats out of their processed foods.
In fact, most of them already have. Trans fat —a...
In an answer to archaeologists’ prayers, excavations at the site of the first English church in what is now the United States have cast light on the lives and deaths of four key players at Virginia’s Jamestown colony more than 400 years ago.
Archaeologists discovered the site of the church, which was used from 1608 to 1617 and hosted Pocahontas’...
- Reviews & Previews 07/25/2015 - 07:00 Science & Society, Mental Health, History of Science
Bystanders may be getting better at rescuing people in cardiac arrest. Using cardiopulmonary resuscitation, or CPR, a person repeatedly compresses the chest to restart a stopped heart. Zapping the person with defibrillator paddles can do the trick as well, but they are less available.
A team led by scientists at Duke Clinical Research Institute finds that in North Carolina from 2010 to...
There is life after death. And it’s kind of gross.
For most of us, death means life (as we know it) is over, kaput, finis. Whatever we believe about a continued existence metaphysically, when we die, our body’s time on Earth comes to an end. But for the microbes living within us, time marches on. And if you are a microbial ecologist, that’s when things get interesting.
A previously hidden genetic link between native peoples in Australia and the Amazon has inspired two different teams of researchers to reach competing conclusions about the origins of Native Americans.
One team analyzing modern genetic data finds evidence that at least two ancestral populations gave rise to Native Americans. Another team, analyzing DNA from present-day and ancient...
For millennia, humans have harnessed the power of clocks to schedule prayers, guide ocean voyages and, lately, to chart the universe. Whatever their use, all clocks need two basic components: a constant repetitive action (like a pendulum’s swing or an atom’s vibrations) and a way to mark time’s progression.
A few teeth and a jaw fragment discovered in Oregon have helped to flesh out lemurlike features of an enigmatic ancient North American primate.
These creatures probably crossed a land bridge from Northeast Asia to North America around 29 million years ago, say paleontologist Joshua Samuels of the National Park Service in Kimberly, Ore., and his colleagues. That intercontinental journey...
- Reviews & Previews 07/13/2015 - 13:45 Science & Society, History of Science
Thanks to modern technology, a 15-million-year-old monkey skull has added surprising new wrinkles to primate brain evolution.
A digital analysis of the fossil finds that this ancient African monkey possessed a tiny brain that nonetheless was folded in a pattern observed in the much larger brains of its present-day descendants.
Although tissue folding accompanied increases in brain...